Locking device for sliding doors



(No Model.)

D. HOKE. LOCKING DEVICE EUR SLIDING DOORS.

N0.`3l,760. Patented Feb. 3, 1885.

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DAV ID HOKE, OF ALTOONA, ASSIGNOB OF ONE-HALF TO HENRY ELIAS HOKE, OF CHAMBERSBURG, PENNSYLVANIA.

`LOCKING DEVICE FOR SLlDlNG DOORS.

SPECIFICATION forming part of Letters Patent No. 311,760, dated February 3,1885.

` Application iled June 24, 1894. (No model 'a all when?, t may er1/wcm.,

Be itknown that I, DAVID HOKE, a citizen of the United States, residing at Altoona, in the county of Blair and State of Pennsylvania, haveinvented certain new and useful Improvel ments in Locking Devices for Sliding Doors;

and I do hereby `declare the following to be a full7 clear, and exact description of the invention, reference being had to the accompanying drawings, which form part of this specification, in which- Figure l is a side elevation ot' a ear and its door with my improvement applied thereto. Fig. 2 is a longitudinal horizontal section of ear-side door and barring or locking device, showing door closed. Fig. 3 is a detail of a modieation. Fig. 4: isa longitudinal section, showing door opened.

My invention has for its object to provide for the sliding doors of freight or other cars a locking device which shall effectually and firmly hold the door in position and prevent destructive jarring and jolt-ing, as hereinafter set fort-h.

My invention consists in the peculiar construction and combination ot' parts hereinafter fully set forth, having reference, principally, iirst, to a locking or barring lever having` a hingeeonneetion with the door and operating to bar the latter endwise; second, to the combination, with the locking or barring lever, of an abutment orsocket in the side of the car, with which an enlarged head or end of the locking or barring lever engages; third, tothe combination,with the locking or barring lever having a mortise in its end, of a link attached i to the side of the ear and adapted and designed to enter said mortise when the door is closed, and to lie down in a recess in the side ot' the car when the door is opened.

Referring tothe accompanying drawings, A represent the side of a freight, stock, express, or other car7 having anopening, B, designed to be closed by a door, C, which is adapted to slide to and fro in guides or ways a a.

D represents a metallic bar orstrap secured to the door C by bolts d d, and having a hinge connection orjoint, E, by means of which there is secured to it a lever, F, which should be made of wrought-iron. This lever terminates at its hinge end in a head, E, of such width or depth horizontally that when closed, as here` inafter specified, its outer surface is tlushwith the outer surface of the 'oar D, while its lower or inner surface is inside the exterior plane ot' the car-side A. Said head F has. a straight shoulder or end,f, and on its under side is beveled to form another shoulder, f.

G represents an abutment or socket, consisting of a cast-n1etal boxtitted in a recess, H, in the carlside A, and irmly secured therein by bolts hh. One end of the socket is beveled, as shown at g, andthe other end, y', is straight and in alignment with the end f of lever-head F, and with the edge c ofthe door C when the latter is closed.

I represents a link secured to an eyebolt, K, or staple in the ear-sidc A, and L is a recess in said earlside A, in which saidlink can rest inside of the exterior plane of the car-side when the door C is opened.

M is a mortise in the end of the lever G, adapted to receive the link I, apadlock, N, or equivalent fastening or bolt, beingl inserted in the link after its passage through said mortise.

The operation of the device is as follows: The door is first moved forward or slid along on its ways or guides until it closes the openA ing B. rllhe lever F is then thrown back wardly or inwardly toward the canside until itmeets the latter, the link I passing through the mortise M, and being secured by a padlock or equivalent fastening. In movingback thelever the inner part ot' the head F/ ot' said lever enters the socket G, its shoulder j bearing against the beveled end r/ of said socket, and its shoulderf abutting against the other end, g', of said socket, and also against the edge c of the door C and the end d ot' the strap or bar I). VThis movement of the lever accordingly tends to move the door forward if thelatterbe not already closed, and when the complete closure ofthe door is effected the lever serves to dog or bar it against endwise movement, securing said door most firmly in a closed position, and effectually preventing its jarring loose or being opened until the lever is released. If theparts be accurately fitted, there will be no strain of any moment on the hinge E when the. door is secured, whatever stra-in Ico there is being exerted lengthwise of the lever or bar F.

The locking device herein described may be used for sliding doors other than those on cars, and the part A in the drawings, representing a car-side, may also stand for the wall of a building having a sliding door.

If it be desired to secure the door in a partlyopened condition, this may be effected by the provision of a second abutment or socket at the required distance back of the socket G and a second link back of the link I.

If it be desired to draw the door by the action of the lever laterally toward the car-side A and to hold it rrnly against said side, this may be accomplished by forming the lever F with a projecting` beveled toe, f2, the end ol" the socket G having a correspondingly-beveled under-cut, g2, to which said toe enters, as shown in Fig. 3 ofthe drawings.

What I claim as my inventionis as follows:

1. In a locking device for sliding doors of cars, the coinbination,witli the door,of a strap secured thereto, a lever hinged to said strap and having a head upon its inner side, and a socket or shoulder attached to the side of the car in such position that the head on the lever will engage therewith when the door is closed and the lever swung around against the carside, substantially as described, whereby the door is secured against endwise movement.

2. In a locking device for sliding doors of.

cars, the combination,wth the door C and the socket G in the car-side, ofthe strap D, secured to the outside of the door, the lever F, having a head, F', one of whose ends is inclined, as shown, and the'said head being adapted to cnter the said socket when the lever is swung around, the inclined end bearing against one end of the socket and forcing the door against .io

its janib, substantially as described.

3. The combination,witli side or wall A and sliding door C, of strap or bar D, hinge E, le ver F, having` enlarged head F, socket or abutment G, link I, and bolt K, pivotally securing the said link to the side of the car, said several parts being constructed and combined for operati on substantially as shown and de scribed, and for the purpose set forth.

4. The combiiiatioii,ivith theslidingdoorG, 5o

having a locking lever or bar, F, of a link, l, jointed in a recess in the side A, whereby said link may be broughtinto engagement with said lever or bar when the door is closed. and will lie down in said recess behind said door when the latter is open, substantially as shown and described. y

In testimony that I claim the foregoing I have hereunto set iny hand this 19th day of 

